Here's the thing. Rubio did have to attack Trump. It was long overdue if he expected win. And there are many things he can attack him with. But resorting to schoolyard taunts about his looks is not good for Rubio who ends up being diminished in stature. He already looks like a kid. Now he's acting like one.

You can't out-Trump Trump. He's sui generis. The attacks on his business career would seem to be much more fruitful territory to me. If he'd stuck with that and reinforced it with a barrage of ads echoing the same message --- that Trump is nothing more than a brand name on an empty suit maybe he could have an impact. But I'll be surprised if this works.